[IPV6] ADDRCONF: Statically link __ipv6_addr_type() for sunrpc subsystem.

Link __ipv6_addr_type() statically for sunrpc code even if IPv6 is
built as module.

Signed-off-by: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org>

3 files changed, 76 insertions, 69 deletions

diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index 8bacda109b7f..d460017bb353 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -32,6 +32,6 @@ obj-$(CONFIG_NETFILTER)	+= netfilter/
 obj-$(CONFIG_IPV6_SIT) += sit.o
 obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o
 
-obj-y += exthdrs_core.o
+obj-y += addrconf_core.o exthdrs_core.o
 
 obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 569a37d698f7..524bffe62499 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -211,74 +211,6 @@ const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
 #endif
 const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
 
-#define IPV6_ADDR_SCOPE_TYPE(scope)     ((scope) << 16)
-
-static inline unsigned ipv6_addr_scope2type(unsigned scope)
-{
-        switch(scope) {
-        case IPV6_ADDR_SCOPE_NODELOCAL:
-                return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_NODELOCAL) |
-                        IPV6_ADDR_LOOPBACK);
-        case IPV6_ADDR_SCOPE_LINKLOCAL:
-                return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL) |
-                        IPV6_ADDR_LINKLOCAL);
-        case IPV6_ADDR_SCOPE_SITELOCAL:
-                return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL) |
-                        IPV6_ADDR_SITELOCAL);
-        }
-        return IPV6_ADDR_SCOPE_TYPE(scope);
-}
-
-int __ipv6_addr_type(const struct in6_addr *addr)
-{
-        __be32 st;
-
-        st = addr->s6_addr32[0];
-
-        /* Consider all addresses with the first three bits different of
-           000 and 111 as unicasts.
-         */
-        if ((st & htonl(0xE0000000)) != htonl(0x00000000) &&
-            (st & htonl(0xE0000000)) != htonl(0xE0000000))
-                return (IPV6_ADDR_UNICAST |
-                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));
-
-        if ((st & htonl(0xFF000000)) == htonl(0xFF000000)) {
-                /* multicast */
-                /* addr-select 3.1 */
-                return (IPV6_ADDR_MULTICAST |
-                        ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr)));
-        }
-
-        if ((st & htonl(0xFFC00000)) == htonl(0xFE800000))
-                return (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_UNICAST |
-                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));               /* addr-select 3.1 */
-        if ((st & htonl(0xFFC00000)) == htonl(0xFEC00000))
-                return (IPV6_ADDR_SITELOCAL | IPV6_ADDR_UNICAST |
-                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL));               /* addr-select 3.1 */
-
-        if ((addr->s6_addr32[0] | addr->s6_addr32[1]) == 0) {
-                if (addr->s6_addr32[2] == 0) {
-                        if (addr->s6_addr32[3] == 0)
-                                return IPV6_ADDR_ANY;
-
-                        if (addr->s6_addr32[3] == htonl(0x00000001))
-                                return (IPV6_ADDR_LOOPBACK | IPV6_ADDR_UNICAST |
-                                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));       /* addr-select 3.4 */
-
-                        return (IPV6_ADDR_COMPATv4 | IPV6_ADDR_UNICAST |
-                                IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));  /* addr-select 3.3 */
-                }
-
-                if (addr->s6_addr32[2] == htonl(0x0000ffff))
-                        return (IPV6_ADDR_MAPPED |
-                                IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));  /* addr-select 3.3 */
-        }
-
-        return (IPV6_ADDR_RESERVED |
-                IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));  /* addr-select 3.4 */
-}
-
 static void addrconf_del_timer(struct inet6_ifaddr *ifp)
 {
         if (del_timer(&ifp->timer))
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
new file mode 100644
index 000000000000..644e0c742f99
--- /dev/null
+++ b/net/ipv6/addrconf_core.c
@@ -0,0 +1,75 @@
+/*
+ * IPv6 library code, needed by static components when full IPv6 support is
+ * not configured or static.
+ */
+
+#include <net/ipv6.h>
+
+#define IPV6_ADDR_SCOPE_TYPE(scope)     ((scope) << 16)
+
+static inline unsigned ipv6_addr_scope2type(unsigned scope)
+{
+        switch(scope) {
+        case IPV6_ADDR_SCOPE_NODELOCAL:
+                return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_NODELOCAL) |
+                        IPV6_ADDR_LOOPBACK);
+        case IPV6_ADDR_SCOPE_LINKLOCAL:
+                return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL) |
+                        IPV6_ADDR_LINKLOCAL);
+        case IPV6_ADDR_SCOPE_SITELOCAL:
+                return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL) |
+                        IPV6_ADDR_SITELOCAL);
+        }
+        return IPV6_ADDR_SCOPE_TYPE(scope);
+}
+
+int __ipv6_addr_type(const struct in6_addr *addr)
+{
+        __be32 st;
+
+        st = addr->s6_addr32[0];
+
+        /* Consider all addresses with the first three bits different of
+           000 and 111 as unicasts.
+         */
+        if ((st & htonl(0xE0000000)) != htonl(0x00000000) &&
+            (st & htonl(0xE0000000)) != htonl(0xE0000000))
+                return (IPV6_ADDR_UNICAST |
+                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));
+
+        if ((st & htonl(0xFF000000)) == htonl(0xFF000000)) {
+                /* multicast */
+                /* addr-select 3.1 */
+                return (IPV6_ADDR_MULTICAST |
+                        ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr)));
+        }
+
+        if ((st & htonl(0xFFC00000)) == htonl(0xFE800000))
+                return (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_UNICAST |
+                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));               /* addr-select 3.1 */
+        if ((st & htonl(0xFFC00000)) == htonl(0xFEC00000))
+                return (IPV6_ADDR_SITELOCAL | IPV6_ADDR_UNICAST |
+                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL));               /* addr-select 3.1 */
+
+        if ((addr->s6_addr32[0] | addr->s6_addr32[1]) == 0) {
+                if (addr->s6_addr32[2] == 0) {
+                        if (addr->s6_addr32[3] == 0)
+                                return IPV6_ADDR_ANY;
+
+                        if (addr->s6_addr32[3] == htonl(0x00000001))
+                                return (IPV6_ADDR_LOOPBACK | IPV6_ADDR_UNICAST |
+                                        IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));       /* addr-select 3.4 */
+
+                        return (IPV6_ADDR_COMPATv4 | IPV6_ADDR_UNICAST |
+                                IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));  /* addr-select 3.3 */
+                }
+
+                if (addr->s6_addr32[2] == htonl(0x0000ffff))
+                        return (IPV6_ADDR_MAPPED |
+                                IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));  /* addr-select 3.3 */
+        }
+
+        return (IPV6_ADDR_RESERVED |
+                IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));  /* addr-select 3.4 */
+}
+